Method and apparatus for antegrade coronary perfusion

Details Method and apparatus for antegrade coronary perfusion Method and apparatus for antegrade coronary perfusion

1995-07-17

2000-07-04

Polutta, Mark O.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 4, 604264, 604508, 128898, A61M 3100

Patent

active

060832150

ABSTRACT:
A multi-lumen catheter and method for providing antegrade perfusion to an ischemic region of the myocardium of a patient induced by a coronary or vascular deficiency, including a restriction or obstruction in the vessel such as an athesclerotic lesion or stenosis, embolism, thrombosis, vessel spasm, aneurysm, or the like. The distal tip of the catheter is introduced by a conventional percutaneous transluminal procedure via the femoral or brachial artery and advanced through the vascular system to a position closely proximate to the ischemic region. A volume of oxygenated blood is withdrawn into a lumen of the catheter from a position remote to the deficiency, circulated through a pump assembly and filter, and expelled from the distal tip of the catheter to increase the supply of oxygenated blood reaching the ischemic region. The catheter may be advanced directly to or past the deficiency within the same arterial vessel, or the volume of oxygenated blood may be supplied to the ischemic region via a collateral arterial pathway. An inflatable balloon may be used to anchor the distal tip of the catheter in a selected position and to block retrograde perfusion, and a pressure transducer may monitor pressure levels within the vessel and be used to responsively control the pressure at which the oxygenated blood is expelled.

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